Home / 77,117.25-106,421.06-43,125.35

Finding the Fourth Proportional to 77,117.25, 106,421.06 and 43,125.35

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Solution

The fourth proportional to 77,117.25, 106,421.06 and 43,125.35 is: 59,512.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,117.25 : 106,421.06 = 43,125.35 : x
  2. Step 2: Convert to fraction form
    77,117.25/106,421.06 = 43,125.35/x
  3. Step 3: Cross multiply
    77,117.25x = 106,421.06 × 43,125.35
  4. Step 4: Simplify right side
    77,117.25x = 4,589,445,035.58
  5. Step 5: Solve for x
    x = 4,589,445,035.58/77,117.25
  6. Step 6: Final answer
    x = 59,512.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.